#include<stdio.h>
#include<assert.h>
int my_strlen(const char* str)
{
	assert(str != NULL);
	int count = 0;
	while (count++,*str++)
	{
	
	}

	return count;
}
int main()
{
	char* arr = "myloveer";
	printf("%d\n", my_strlen(arr));

}